Maxwell's Laws and the Lorenz Force Law (see below) allow calculation and prediction of the    effects of electromagnetic fields. Although these laws explain what happens, they don't explain how or why things happen.

 

              (1)                          (2)                          (3)                                  (4)

           =0           

                                      Maxwell's Equations  ^               (5)

             Lorentz Force Law  >                                  F = qE + qv * B

Here are brief descriptions of the formulas: (1) Relates electric field to its generating charge. (2) Magnetic field lines form loops. (3) Electric field is generated by changing magnetic flux. (4) Magnetic field is produced from changing electric field. (5) Calculates force exerted upon a particle by surrounding electric and magnetic fields.